Finding the Fourth Proportional to 1,389,497.52, 1,917,506.60 and 753,593.52
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Solution
The fourth proportional to 1,389,497.52, 1,917,506.60 and 753,593.52 is: 1,039,959.07
Step by Step Solution
- Step 1: Write the proportion equation
1,389,497.52 : 1,917,506.60 = 753,593.52 : x - Step 2: Convert to fraction form
1,389,497.52/1,917,506.60 = 753,593.52/x - Step 3: Cross multiply
1,389,497.52x = 1,917,506.60 × 753,593.52 - Step 4: Simplify right side
1,389,497.52x = 1,445,020,548,317.23 - Step 5: Solve for x
x = 1,445,020,548,317.23/1,389,497.52 - Step 6: Final answer
x = 1,039,959.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.